Reduce bloom quality to a single gaussian blur?

[Konflict]

@John Alcatraz;614686

affects the “PostProcessWeightedSampleSum” points in the profiler

Then i read it wrong, and that’s the sampling kernel’s size, where 3 is fine to get a 3x3 kernel to work with, but doing only 1x1 means you get the same image since you only sample the center. So the 3 should be fine.

@John Alcatraz;614686

it just makes no sense since 1 is same expensive like 3.

Yes it takes a little longer to read all this stuff, but you either get a 3x3 kernel as a minimum regardless you requested 1 (minimum lock) or it could be the way the GPU is sampling the pixels, and as they coming from cached values (instead of measuring the same pixel multiple times) the performance costs also gets significantly reduced.

@John Alcatraz;614686

was 3, not 6).

Makes sense, it must be two separated blur passes then.

@John Alcatraz;614686

the tonemapper more expensive

Probably that’s where the blending happens, and it takes some time to do it multiple times.

@John Alcatraz;614686

screen size * 0.5, why?

Maybe this? A third method could just be .25?

@John Alcatraz;614686

much bigger difference

Yes indeed, since it would reduce the tonemappers work as well.